#define _CRT_SECURE_NO_WARNINGS 1
#include <iostream>

using namespace std;

class Sum
{
public:
    Sum()
    {
        count += i;
        i++;
    }
    static int i;
    static int count;
};

int Sum::i = 1;
int Sum::count = 0;

class Solution {
public:
    int Sum_Solution(int n)
    {
        Sum a[n];
        return Sum::count;
    }

};

int main()
{
	int ret = 0;
	cout << "ret:" << ret << endl;

	return 0;
}